Controlling mechanism.



R. DAVIS. CONTROLLING MECHANISM.

APPLIOATION FILED SEPT.27, 1912. 41,074,495. Pat nted Sept.-30,1913.

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LUMBIA PLANOGRANL 60-. WASHINGTON, D. c.

R. DAVIS. CONTROLLING MECHANISM. APPLICATION FILED SEPT. 27, 1912.

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Patented Sept. 30, 1913.

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COLUMBIA PLANocIun H CO.,WASHINGTON n c BAY DAVIS,

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CONTROLLING MECHANISM.

Specification of Letters Patent.

Application filed September 27, 1912.

Patented Sept. 30, 1913.

Serial No. 722.724.

To all whom 2'25 may concern:

Be it known that I, Ber DAVIS, a citizen of the United States, residingat Lehigh, in the county ofvVebster and State of Iowa, have invented newand useful Improvements in Controlling Mechanism, of which the followingis a specification.

This invention relates to controlling mechanism forinternal combustionengines and one of the principal objects of the invention is to providea simple and eiiicient mechanism whereby the action of the governors maybe controlled to regulate the operation of the make and brake withoutadj ustment of the ball springs of the governor.

Further objects of this. invention will appear as the following specificdescription is read in connection with the accompanying drawings whichform a part of this application, and in which Figure 1 is a frontelevation. Fig. 2 is a detail horizontal section taken on the line 2-2of Fig. 1. Fig. 3 is a vertical section taken on the line 33 of Fig. 1.Fig. 4 is a horizontal section taken on the line 14.= of Fig. 1. Fig. 5is a perspective view of the operating crank rod.

Referring more particularly to the drawing 1 represents the base of anordinary internal combustion engine from which projects the crank shaft2 intergeared as shown with the counter or governor shaft 3 as shown.Slidably mounted upon the governor shaft as usual is a sleeve 4 adaptedto be operated by the inner leg 5 of the pivoted weights 6. Theseweights are connected together on opposite sides of the shaft byadjustable springs '7 and the sleeve is arranged in the path of a lever8 pivoted upon a lateral projection 9 of the engine base.

Secured to the base is a mounting plate 10 having pivoted to operatethereover a lever 11 which is locked in adjusted position by means of aspring pressed dog 12 which engages the notches 18 formed in the plate.Connectedto the lever 11 intermediate its ends is a pivoted link 1 1connected to a clevis 15 which is slidably mounted over the operating oradjusting rod 16 and has a roller 17 arranged therein to bear againstsaid rod. This rod has a right-angular extension 18 which is journaledin an ear 19 formed on the plate 10 and also in an ear 20 formed on theengine base. Intermediate the ear 19 and the ear 20 the extension 18 isprovided with a crank 21 which is connected to the lever 8 by means of alink 22. The lower end of the lever 11 is formed into a tooth-segment 23which engages a similar segment 24: formed on the lower end of a plate25 also pivoted to the plate 10 and connected tothe lever 8 by means ofthe link 26. The plate 25 is connected to the clevis by means of anextended car 27 and a helical spring 28 so that when the lever 11 ismoved toward the left the clevis is drawn over the lever 16 and thesegment 23 meshing with the segment 24 causes the rotation of the plate25 in an opposite direction to the movementof the lever, thus the spring28 is tensioned and the clevis pulled downwardly upon the lever 16 so asto draw the lower end of the lever 8 toward the engine base through theaction of the crank 21 and the link 22. The upper end of the lever Bpresses against the slidably mounted sleeve t and interposes anadditional resistance to the action of the governor balls which permitsthe engine to speed up considerably before the lever 8 is carried out ofthe path of the trigger as will be readily understood.

The only portion of the make and brake mechanism shown herein is thelever 8 as the remainder of the mechanism forms no part of thisinvention and may be of any desired or preferred type or the lever 8 maybe used to control the opening of theexhaust valve or the opening of theinlet valve. It is extremely common to control engines of this type inall three ways, either by omitting a spark, or opening or closing theinlet or exhaust valve.-

In this type of engine and governor the make and brake controlling leveris usually at its lower end connected to the engine by means of ahelical spring which is non-adjustable and therefore the lever was drawnout of the path of the trigger at a time when the engine acquires acertain speed which could not be increased or diminished except by thesprings 7 WVith this device the springs 7 may be set to the requiredtension and the spring controlling the lower end of the lever 8dispensed with while the tension of the spring 28 may be convenientlyadjusted by operation of the lever 11.

7 What is claimed is 1. The combination with a hydrocarbon engine,having a spring controlled governor and a speed controlling leveroperated by the governor, of a lever operatively connected to thefirst-named lever, a spring for operating the second-named lever, and

means for moving the spring over the second-named lever away from thefulcrum point and simultaneously increasing the tension thereof.

2. The combination with a hydrocarbon engine having a spring controlledgovernor and a speed controlling lever operated thereby, of a leveroperatively connected to said first named lever, a spring for operatingsaid second named lever, and means for moving the connection of saidspring with the second lever so as to increase or decrease the tensionof the spring and the distance of the connection from the fulcrum pointof the lever.

3. The combination with a hydrocarbon engine having a governorcontrolled lever, of a second lever operatively connected at one end tothe first lever, a spring connected to the second lever for movementbetween its fulcrum point and the free end thereof, and means to movethe connection of said spring Copies of this patent may be obtained forfive cents toward the free end of the second lever and hand lever foroperating said guide, a-rotating member operated by said hand lever, anda spring interconnecting the guide and the rotating member whereby whenthe hand lever is operated the guide will be moved over the second leverand the spring simultaneously tensioned by the rotation of said 7rotating member. 7

in presence of'two Witnesses.

- RAY DAVIS.

WVitnesses V V V J. B. MARsI-I,

W. J SGHMUDEMANN'.

Washington, D. C. V

' 40 7 In testimony whereof I aflix my signature

